Bug 1412183 - use BufferReader instead of ByteReader in DecoderData. r=kinetik

MozReview-Commit-ID: AgcOuWn7ouo

--HG--
extra : rebase_source : e2aa46b47e848a8d51dc6e48a58e46db6f669b68

media/libstagefright/binding/DecoderData.cpp

@@ -4,7 +4,7 @@
 
 #include "mp4_demuxer/Adts.h"
 #include "mp4_demuxer/AnnexB.h"
-#include "mp4_demuxer/ByteReader.h"
+#include "mp4_demuxer/BufferReader.h"
 #include "mp4_demuxer/DecoderData.h"
 #include <media/stagefright/foundation/ABitReader.h>
 #include "media/stagefright/MetaData.h"
@@ -87,27 +87,27 @@ FindData(const MetaData* aMetaData, uint32_t aKey, mozilla::MediaByteBuffer* aDe
   return FindData(aMetaData, aKey, static_cast<nsTArray<uint8_t>*>(aDest));
 }
 
-bool
+Result<Ok, nsresult>
 CryptoFile::DoUpdate(const uint8_t* aData, size_t aLength)
 {
-  ByteReader reader(aData, aLength);
+  BufferReader reader(aData, aLength);
   while (reader.Remaining()) {
     PsshInfo psshInfo;
     if (!reader.ReadArray(psshInfo.uuid, 16)) {
-      return false;
+      return Err(NS_ERROR_FAILURE);
     }
 
     if (!reader.CanReadType<uint32_t>()) {
-      return false;
+      return Err(NS_ERROR_FAILURE);
     }
     auto length = reader.ReadType<uint32_t>();
 
     if (!reader.ReadArray(psshInfo.data, length)) {
-      return false;
+      return Err(NS_ERROR_FAILURE);
     }
     pssh.AppendElement(psshInfo);
   }
-  return true;
+  return Ok();
 }
 
 static void

media/libstagefright/binding/include/mp4_demuxer/DecoderData.h

@@ -53,14 +53,14 @@ public:
 
   void Update(const uint8_t* aData, size_t aLength)
   {
-    valid = DoUpdate(aData, aLength);
+    valid = DoUpdate(aData, aLength).isOk();
   }
 
   bool valid;
   nsTArray<PsshInfo> pssh;
 
 private:
-  bool DoUpdate(const uint8_t* aData, size_t aLength);
+  mozilla::Result<mozilla::Ok, nsresult> DoUpdate(const uint8_t* aData, size_t aLength);
 };
 
 class MP4AudioInfo : public mozilla::AudioInfo